Wound tension reducing closer

Abstract

The invention provides a wound relaxation closer which comprises wound fixers and fixing strips, the wound fixers are arranged in pairs and installed on skin tissue on the two sides of a wound, each wound fixer comprises a cylinder, a plurality of through holes penetrating through the cylinder wall are formed in each cylinder, and the fixing strips are arranged in the through holes. The wound fixing devices on the two sides of a wound are connected through the penetrating and binding fixing strips, an anchoring body is arranged at the bottom of the cylinder body, the anchoring body is used for puncturing skin tissue and fixing the skin tissue, and the anchoring body is arranged to be in a spiral shape. The wound fixator can be fixed to skin tissue more firmly, connection between the wound fixator and the skin tissue is more stable and reliable, wound tension can be better resisted, tension of a wound is reduced, meanwhile, connection operation of the wound fixator on the two sides of the wound through the fixing strip is facilitated, and the wound fixator is more convenient to use. Particularly, a plurality of wound fixers can be integrally connected quickly and orderly, and the wound fixator is simple in structure, convenient to process and manufacture and low in use cost.

Description

Technical Field

[0001] The present invention relates to the technical field of wound closure devices, and in particular to a wound tension-reducing closure device. Background Art

[0002] In the field of human medical anatomy and tissue repair, skin tissue is the most basic and important barrier closed structure between the inside and outside of the human body. Skin tissue includes the epidermis, dermis, and subcutaneous layer. When this barrier is damaged by surgical incision or trauma, it must be sutured surgically to restore the original layered alignment of the free skin edge of the wound as soon as possible according to the original anatomical structure of the skin, and restore the barrier structure and physiological function of the original skin through skin tissue regeneration. In order to promote the layered alignment of the free skin edge of the wound, the precise alignment and flatness of the wound skin edge in the horizontal and vertical axes are particularly important for wound healing and are the basis for physiological regenerative healing of the wound.

[0003] Traditionally, patients' skin wounds are closed by linear closure, needle and thread suture or skin staple suture, which all generate large tension in the direction perpendicular to the wound. If the wound tension is large, the suture or staple will produce a cutting effect in the vertical direction, resulting in the ineffective closure of the wound, requiring re-suturing or adding tension-reducing sutures, and increasing scars. In recent years, a variety of non-traumatic wound closure technologies, such as glue closure and zipper closure, have been gradually applied. Under the condition of surface tension resistance, there are still gaps inside, which may cause wound effusion or even infection.

[0004] For example, the Chinese invention patent application with publication number CN109124712A discloses a wound closure device, including a window, a puller and a fixer, wherein the window includes a window body wall, a window top wall and an openable and closable window arranged on the window top wall, the puller is arranged on both sides of the window, one end of the puller is connected to the fixer, and the other end is connected to the window, and a fixing adhesive layer is arranged on the bottom surface of the fixer facing the skin. In this solution, a fixing adhesive layer is arranged on the side of the fixer facing the skin, and it is still fixed to the skin tissue by bonding. The Chinese invention patent application with publication number CN111493958A discloses a new type of clip-type skin nail set, including an elastic steel plate with an "Ω"-shaped structure, two symmetrically arranged side wings, and two groups of steel needles symmetrically fixed at the bottom of the elastic steel plate; the bottom of the elastic steel plate is an opening and closing end to achieve the clamping and fixing of the wound; the two side walls are respectively rotatably connected to the two outer side walls of the elastic steel plate to assist in the opening and closing of the elastic steel plate; one end of the steel needle is inserted into the bottom of the elastic steel plate for fixing, and the other end is inserted into the skin to bite the skin edge of the wound surface when suturing the wound. In this scheme, the steel needle is fixed to the skin tissue, which is similar to the effect of skin nails, but the firmness is still not high when the depth is limited.

[0005] In addition, in the prior art, the fixators at both ends of the wound are usually connected by bolts or clips. This method requires opening threaded holes or installing clips on the fixators, which increases the complexity of fixator manufacturing and may also increase the overall volume. Further improvements can be made for the surgical requirement of wound healing. Summary of the invention

[0006] The purpose of the present invention is to address the deficiencies in the above-mentioned background technology and to provide a closure device which can close the entire wound with full tension resistance while reducing tissue damage when the wound is deep, and which has a simple structure and is easy to operate.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a wound tension-reducing closure device, including a wound fixator and a fixing strip, wherein the wound fixator is arranged in pairs and installed on the skin tissue on both sides of the wound, the wound fixator includes a cylinder, and the cylinder is provided with a plurality of through holes penetrating the cylinder wall, the wound fixators on both sides of the wound are connected by the fixing strips that are inserted and tied, and an anchor body is arranged at the bottom of the cylinder, the anchor body is used to puncture the skin tissue and fix it, and the anchor body is arranged in a spiral shape.

[0008] Furthermore, the height of the anchoring body is 5mm-100mm.

[0009] Furthermore, the bottom end of the anchoring body is configured to be pointed, and the outer diameter of the cylinder is configured to be greater than, less than, or equal to the diameter of the helical surface of the anchoring body.

[0010] Furthermore, the through holes on the cylinder are arranged in groups, each group of through holes includes one or more through holes, and different groups of through holes are distributed in different layers of the cylinder.

[0011] Furthermore, the angles between the respective through holes in each group of through holes of the cylinder have different specifications for replacement.

[0012] Furthermore, a plurality of the wound fixators are arranged on both sides of the wound, and the wound fixators are arranged symmetrically or staggered relative to the center line of the wound.

[0013] Further, one of the through holes of the wound fixator on the left side of the wound corresponds to one of the through holes of the wound fixator on the right side, another through hole of the wound fixator on the left side of the wound corresponds to the through hole of the previous wound fixator on the right side, and another through hole of the wound fixator on the right side of the wound corresponds to the through hole of the next wound fixator on the left side.

[0014] Further, when the wound fixator is connected to one of the fixing strips, it operates at one layer of the through hole positions, and when the wound fixator is connected to another of the fixing strips, it operates at another layer of the through hole positions.

[0015] The above scheme of the present invention has the following beneficial effects:

[0016] The wound tension reducing closure device provided by the present invention can, on the one hand, be more firmly fixed to the skin tissue by the arrangement of the spiral anchor body, so that the connection between the wound fixator and the skin tissue is more stable and reliable, thereby being able to better resist the tension of the wound and reduce the tension of the wound. Moreover, compared with the form with a barbed structure, the wound tension reducing closure device can be disassembled more smoothly and causes less damage to the skin tissue. On the other hand, the arrangement of the cylinder and the through hole facilitates the connection operation of the wound fixators on both sides of the wound by the fixing strip, especially the rapid and orderly connection of multiple wound fixators as a whole, and the wound tension reducing closure device has a simple structure, is easy to manufacture, and has a low use cost.

[0017] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a wound fixator of the present invention;

[0019] Figure 2 It is a schematic diagram of the installation of the wound fixator of the present invention;

[0020] Figure 3 It is a schematic diagram of installing multiple wound fixators of the present invention (zigzag shape);

[0021] Figure 4 It is a schematic diagram of installing multiple wound fixators of the present invention (wavy shape).

[0022] [Description of Reference Numerals]

[0023] 1-wound fixator; 2-fixing strip; 3-cylinder; 4-through hole; 5-anchoring body. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a locking connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] like Figure 1 , Figure 2 As shown, an embodiment of the present invention provides a wound tension-reducing closure device, including a wound fixator 1 and a fixing strip 2. The wound fixator 1 is arranged in pairs and is installed on the skin tissue on both sides of the wound. Among them, the wound fixator 1 includes a cylinder 3, and a plurality of through holes 4 penetrating the cylinder wall are opened on the cylinder 3. The through holes 4 are used for connecting the fixing strip 2, that is, the wound fixators 1 on both sides of the wound are connected by the fixing strip 2 passing through the through holes 4 and tying. At the same time, an anchor 5 is arranged at the bottom of the cylinder 3, and the anchor 5 is used to puncture the skin tissue and fix it, so that the entire wound fixator 1 is fixed to the skin tissue on the corresponding side of the wound.

[0028] In this embodiment, the anchor 5 is set to be spiral. Compared with the straight skin nail, the spiral anchor 5 can penetrate the skin tissue more firmly, making the connection between the wound fixator 1 and the skin tissue more stable and reliable, so as to better resist the tension of the wound and reduce the tension of the wound. At the same time, compared with the form with a barbed structure, it can be withdrawn more smoothly and cause less damage to the skin tissue.

[0029] In the previous work, a preliminary study on the mechanical interaction between the spiral anchor 5 and the soft tissue structure was conducted. The spiral anchor 5 with a diameter of 3 mm and a depth of 10 mm and 20 mm was used to fix the linear soft tissue incision of the pig skin, and the control group was a skin nail. The maximum tensile strength of the two devices and the maximum tissue separation gap in the horizontal direction were measured 5 times, and the results were recorded as mean ± standard deviation, as shown in Table 1 and Table 2:

[0030] Table 1: Comparative trials for fixation of 10 mm deep skin and soft tissue incisions

[0031] Helical anchor Skin nails Maximum tensile strength (N) 11.78±3.54 9.53±2.12 Maximum tissue separation gap in horizontal direction (mm) 0.6±0.2 1.2±0.3

[0032] Table 2: Comparative trials for fixation of 20 mm deep skin and soft tissue incisions

[0033] Helical anchor Skin nails Maximum tensile strength (N) 17.64±5.23 10.32±3.73 Maximum tissue separation gap in horizontal direction (mm) 0.7±0.3 3.5±1.0

[0034] It can be seen from the above that when the spiral anchor 5 is used for pulling the pig's skin soft tissue, it is found that it can effectively withstand a strong pulling force of up to 17.64N in the horizontal direction, which is about 70% higher than that of skin nails. At the same time, it can still preserve the integrity of the soft tissue during the puncture anchoring process, and the used soft tissue can still maintain its original shape, thus proving that it has good effectiveness and safety.

[0035] It should be noted that in this embodiment, the bottom end of the anchor 5 is set to be pointed so that it can pass through the skin tissue quickly and smoothly. Based on the spiral shape of the anchor 5, it is only necessary to continue the internal pressure and rotate the anchor 5, so that the anchor 5 can be spirally inserted into the skin tissue to fix the wound fixator 1 to the skin tissue. In actual operation, the surgeon can hold the barrel 3 of the wound fixator 1, then press down and rotate the barrel 3. The outer diameter of the barrel 3 is preferably set to be not less than the diameter of the spiral surface of the anchor 5, which is convenient for hand-held operation.

[0036] As a preferred embodiment, the through holes 4 on the cylinder 3 in this embodiment are arranged in groups, each group of through holes 4 includes two or more, and different groups are distributed in different layers of the cylinder 3. Therefore, when the wound fixators 1 on both sides of the wound are connected by the fixing strips 2, two groups of through holes 4 at corresponding height layers can be selected based on actual conditions, and they can be passed through and tied and fixed, etc., which is very convenient to operate and has a simple structure, avoiding the manufacture of complex structures and complex operations.

[0037] As a preferred embodiment, the angles between the through holes 4 of each group of through holes 4 of the cylinder 3 in this embodiment can be set to any angle such as 90°, 60° or 45°, as long as it is a solution that can facilitate the passage and connection of the fixing strip 2.

[0038] In other embodiments, the through hole 4 may not be used, but an annular groove (groove) may be used instead. Similarly, the annular groove may be provided in multiple layers, and the two ends of the fixing strip 2 are respectively arranged in the annular grooves of the wound fixator on both sides of the wound. Alternatively, the barrel 3 may also be provided in the form of an inverted cone, with the bottom connected to the base, the fixing strip is tied to the bottom of the inverted cone, the base is used to contact the surface of the skin tissue, which can increase the contact area and further improve the stability, and the anchor body 5 is connected to the lower surface of the base.

[0039] It should be noted that, for actual wound suturing, multiple wound fixators 1 can be arranged on both sides based on the size of the wound, and the wound fixators 1 can be arranged symmetrically or staggered relative to the center line of the wound. Therefore, when connected by the fixing strip 2, a zigzag connection method can be used for the symmetrical arrangement, as shown in the figure; a wave-shaped connection method can be used for the staggered arrangement, as shown in the figure.

[0040] Based on the multiple groups of through holes 4 set on the cylinder 3 and distributed in layers, the angles between each group of through holes 4 can be consistent with the overall distribution form, that is, for the "Z"-shaped connection method, the wound fixators 1 corresponding to the left and right sides of the wound, one of the through holes 4 of the wound fixator 1 on the left corresponds to one of the through holes 4 of the wound fixator 1 on the right, another through hole 4 of the wound fixator 1 on the left corresponds to the through hole 4 of the previous wound fixator 1 on the right, and another through hole 4 of the wound fixator 1 on the right corresponds to the through hole 4 of the next wound fixator 1 on the left, so as to ensure the orderly connection of the fixing strip 2, and finally connect all the wound fixators 1 as a whole to achieve the best stabilization effect. As for the wave-shaped sequential connection method, the routing method of the fixing strip 2 is similar and will not be repeated here.

[0041] It should be noted that, after the end of the fixing strip 2 passes through the through hole 4 of the barrel 3, it can pass through other through holes 4 in the same layer, through holes 4 in different layers, or pass through the top of the barrel 3 and be tied and fixed. As a preferred embodiment, the end of the fixing strip 2 passes through other through holes in the same layer and is tied, so that it will not interfere with other fixing strips 2, etc., and is more convenient to operate. Based on the multiple layers of through holes 4, for a certain wound fixer 1, when it is connected to one fixing strip 2, it is operated at the position of a through hole 4 in one layer, and when it is connected to another fixing strip 2, it is operated at the position of a through hole 4 in another layer, and the same is true for the annular groove form.

[0042] In summary, the wound tension-reducing closure device provided in this embodiment, on the one hand, can be more firmly fixed to the skin tissue through the setting of the spiral anchor body 5, so that the connection between the wound fixator 1 and the skin tissue is more stable and reliable, thereby being able to better resist the tension of the wound and reduce the tension of the wound. In addition, its disassembly can be smoother than that of the form with a barbed structure, and the damage to the skin tissue is also less. On the other hand, relying on the setting of the cylinder 3 and the through hole 4, it is convenient for the fixing strip 2 to connect the wound fixators 1 on both sides of the wound, especially when multiple wound fixators 1 are connected as a whole, which is fast and orderly, and has a simple structure and is easy to process and manufacture.

[0043] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A wound tension reducing closure device, characterized in that: It includes a wound fixator and a fixing strip. The wound fixator is arranged in pairs and installed on the skin tissue on both sides of the wound. The wound fixator includes a cylinder body, and a plurality of through holes penetrating the cylinder wall are opened on the cylinder body. The wound fixators on both sides of the wound are connected by the fixing strips that are inserted and tied. An anchor body is arranged at the bottom of the cylinder body. The anchor body is used to puncture the skin tissue and fix it. The anchor body is arranged in a spiral shape.

2. A wound tension reducing closure device according to claim 1, characterized in that: The height of the anchoring body is 5mm-100mm.

3. The wound tension reducing closure device according to claim 1, characterized in that: The bottom end of the anchoring body is configured to be pointed, and the outer diameter of the cylinder is configured to be greater than, less than, or equal to the diameter of the helical surface of the anchoring body.

4. The wound tension reducing closure device according to claim 1, characterized in that: The through holes on the cylinder are arranged in groups, each group of through holes includes one or more through holes, and different groups of through holes are distributed in different layers of the cylinder.

5. The wound tension reducing closure device according to claim 4, characterized in that: The angles between the through holes in each group of through holes of the cylinder have different specifications for replacement.

6. The wound tension reducing closure device according to claim 4, characterized in that: A plurality of the wound fixators are arranged on both sides of the wound, and the wound fixators are arranged symmetrically or staggered relative to the center line of the wound.

7. The wound tension reducing closure device according to claim 6, characterized in that: One of the through holes of the wound fixator on the left side of the wound corresponds to one of the through holes of the wound fixator on the right side, another through hole of the wound fixator on the left side of the wound corresponds to the through hole of the previous wound fixator on the right side, and another through hole of the wound fixator on the right side of the wound corresponds to the through hole of the next wound fixator on the left side.

8. The wound tension reducing closure device according to claim 7, characterized in that: When the wound fixator is connected to one of the fixing strips, it operates at one layer of the through-hole positions; when the wound fixator is connected to another of the fixing strips, it operates at another layer of the through-hole positions.

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